NOTE: Original faded, best scan possible.
The role of active solar regions in the formation of magnetic storms
1954-03-09
Jean-Claude Pecker Walter Orr Roberts
archival document
Sun--Research
Gordon A. Newkirk, Jr. Papers
https://aspace.archives.ucar.edu/repositories/2/resources/35
Copyright University Corporation for Atmospheric Research (UCAR). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
http://n2t.net/ark:/85065/d7zs2tr9